The Weapon Tag Chance Pack was a Chance Pack available in Blacklight: Retribution.
The Weapon Tag Chance Pack was a reward that was sent to players when they leveled up in combination with the reward pack
for that level.
Post Parity Patch Edit
With the release of the Parity Patch
all Chance Packs and the Reward Packs have been removed from the game. Most weapon tags can be purchased from the Customization Menu for 100 ZEN.